[SPARK-5149] Type mismatch when defining classes in Spark REPL

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Duplicate
• Component/s: Spark Shell
• Assignee: Tobias Schlatter
• Reporter: Tobias Schlatter
• Created: 08/Jan/15 16:33
• Updated: 27/Jan/16 10:08
• Resolved: 27/Jan/16 10:08

Description

Consider the following Spark REPL session:

scala> class A; def foo(x: A) = x
defined class A
foo: (x: A)A

scala> foo(new A)
<console>:14: error: type mismatch;
 found   : A
 required: A
              foo(new A)
                  ^

This happens, because of the way the Spark REPL imports previously defined symbols (values / types).

Issue Links

• breaks: SPARK-2632 Importing a method of class in Spark REPL causes the REPL to pulls in unnecessary stuff.
• depends upon: SPARK-5150 Strange implicit resolution behavior in Spark REPL
• duplicates: SPARK-2620 case class cannot be used as key for reduce
• supercedes: SPARK-1199 Type mismatch in Spark shell when using case class defined in shell